EVIL ONEAs the head freak in Texas psychedelic warriors the 13th Floor Elevators, Roky Erickson was a cult hero of '60s rock. Unfortunately, he was derailed early on by a combination of mental illness and substance abuse. After a long, traumatic incarceration, Erickson emerged in the '70s as a solo artist with a sound that was musically more straightforward but just as lyrically twisted, albeit in a new way. A number of the songs on EVIL ONE are fueled by